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International and Domestic

  1. USA Patented: Complementary colpitts voltage controlled oscillator with low power and low phase noise

  2. USA Patented: Down-Converter, Up-converter, Receiver and Transmitter Applying the Same

  3. USA Patented: Transmitter and Transmitting Method Using Delay Locked Loop

  4. USA Patented: Card-type information recording medium having embedded antenna for near field communication and manufacturing method thereof 

  5. USA Patented: Power generating circuit and switching circuit

  6. USA Patented: Inverter and switching circuit

  7. USA Patented: Radio Frequency Switch Circuit

  8. USA Patented: Radio Frequency Switch Circuit

  9. USA Patented: Small-sized on-chip CMOS power amplifier having improved efficiency

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